How do I cross promote my app on ios

Hello

I am working on an app for little kids (under 5) and on that app i would like to promote via banner (or a button) another kid app of mine

When a user click on the banner i would like it to open directly itunes pages of that app

i know it is possible via the browser plugin - however i understand that if i do it this way it will be cassified for 17+ ?

is there a way to cross promote apps without being age restricted ?

Thanks